bonanova
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Everything posted by bonanova
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In our last table and plates puzzle, we filled a circular table with plates that touched without overlap. Now we want more plates. Read on ... I've just placed 12 [circular] plates on a rectangular table. They don't touch each other; but they're close enough that you can't add a plate without overlap, Edit: even tho it overhangs the edge, so long as its center is over the table. The plates are now removed and you are asked to completely cover the table with plates. Edit: cover means you can't see any part of the table. Twelve won't do it, so you'll have to order some more. But they're expensive, so you don't want to order more than are needed. How many plates are needed to ensure the table can be completely covered? Obviously we now allow overlap and overhang, so long as the center of the plate is on the table.
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I can show the math if you want, but it is really long, quite complex, and would be at least a 3 minute answer if you knew how to do it. Great. I won't bother then.... BTW - I just noticed #7 said rhombus. Like, that makes the thing doable ... I was trying a general parallelogram - not easy.
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Timed questions are unrealistic, but kind of fun. Problem is you can have the right approach and make a mistake in arithmetic. I got 1-minute answers for most; time ran out on numbers 7 and 10.
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They can be. Here are some ways: The question looks like it has a simple answer, but it's the wrong answer. The question looks like it's not possible to solve, but with a little thought it's simple. In other words, just doing a calculation is not a puzzle. Some thought has to be involved. Often, questions dealing with probability become interesting puzzles. That's because intuition about probability is often misleading.
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Hats on a death row!! One of my favorites puzzles!
bonanova replied to roolstar's question in New Logic/Math Puzzles
But can they keep the progression going? A prisoner can signal to others what he sees, or he can call the color of his own hat. But he needs to do both. -
Yeah!
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I kind of like my previous clue: 1. More than one are English words. Was afraid it might have been too subtle. Next clue was going to be "teammate of .. Walt Clyde Fraser, Willis Reed, Dave DeBusschere." Which of course is Bill Bradley [Knicks basketball team of the '70s] whose nickname was ... Dollar Bill. Great job.
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I'll add one each day until someone has it.
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Watch the other gymnastic events and see. Rings, high bar. Zero initial KE.
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Still not quite; speed is a scalar. Acceleration is a vector; so it has a direction as well as magnitude. a = dv/dt - acceleration is the time rate of change of velocity.
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Check out math and physics help sites that are out there now. They have a protocol which could be a model for use here. Especially the part about [not] giving answers per se, but helping to find the right approach, etc. I would be willing to participate, with no guarantee of time of response, as I'm sure others would. - bn
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I could add one to the list that would be a clue. Maybe tomorrow.
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Here's how it works. Enjoy. JNWSN N NNSCBDCBRL NNTCPTS NVSRDSCLRM
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If he had used the term natural number instead of integer, the other would have been right.
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There are 2100 equally likely outcomes for flipping a coin 100 times. Of these, 1 outcome has no heads and 1 outcome has no tails. And 100 outcomes have 1 head, and another 100 outcomes have one tail. And so on. Not every enumeration of outcomes is a set of equally likely ones.
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Another set - short and sweet. A loan? Aye! Ace leave? Ace, Ola! Cocoa? I coax you. Oaf, you able? Out, Abe! Up! Toil! I lay. You read, you say?
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With a namesake thrown in for good measure.
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Archimedes takes out the trash ... uh, cleans up the leftovers. Nice job. Apologies for the extra letters here and there.
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I still don't see a puzzle here. If rules are obeyed, the best of the slow, medium and fast horses win. If rules are not obeyed, there is a random matching of horses in three races, with outcomes unpredictable. The winner is either the one with the best horses or the one who guesses correctly to get his slow horse matched against the opponents fast horse. He gives up that race to win the other two. But there is not strategy that makes that happen, only luck. What am I missing?